Anthony practice swimming by completing 10 laps everyday every time he practice he improve his time by 3 seconds if it took anthony 20 minutes to complete 10 laps one week ago what is his time today

To find the extreme values of a function f(x. y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x, y)=xy

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

What numbers are included in the set of integers? what numbers are not included?